Use HTTP_OK constant (#33798)

* Use http ok constant

* Remove incorrect use

* Run isort

* Fix pylint by adding missing imports

* Fix pylint by fixing one import

homeassistant/components/tomato/device_tracker.py

@@ -18,6 +18,7 @@ from homeassistant.const import (
     CONF_SSL,
     CONF_USERNAME,
     CONF_VERIFY_SSL,
+    HTTP_OK,
 )
 import homeassistant.helpers.config_validation as cv
 
@@ -102,7 +103,7 @@ class TomatoDeviceScanner(DeviceScanner):
 
             # Calling and parsing the Tomato api here. We only need the
             # wldev and dhcpd_lease values.
-            if response.status_code == 200:
+            if response.status_code == HTTP_OK:
 
                 for param, value in self.parse_api_pattern.findall(response.text):